To be fair, when iMovie launched (an Apple app) it only worked on the brand new iPhone 4. If you had a 3GS (i.e., hadn't upgraded yet), you were out of luck.

To be fair, when iMovie launched (an Apple app) it only worked on the brand new iPhone 4. If you had a 3GS (i.e., hadn't upgraded yet), you were out of luck. It didn't matter that you had the latest iOS. You didn't have the latest hardware so you couldn't run it, although oddly you accidentally buy it through the app store.